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The velocity-time graph of a car moving along a straight road is shown in figure. The average velocity of the car is first `25` seconds is A. `20 m//s`B. `14 m//s`C. `10 m//s`D. `17.5 m//s` |
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Answer» Correct Answer - B Average velocity `=(underset(0)overset(25)intvdt)/(25-0)=("Area of v-t graph between t=0 to t=25 s")/25=1/25[((25+10)/2)(20)]=14 m//s` |
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